A
coupling is aligned when the axis of each threaded taper cone
is properly oriented to the other. If either or both axes are
not correctly orientated, the coupling is misaligned and must
be scrapped as it is out of specification. To ensure the threads
on both ends of the coupling are properly aligned, Gagemaker
recommends inspecting with our coupling alignment gage. CA-9001,
CA-9001-M.

Нутромер
для внутренних измерений диаметраInternal Deep Reach Bore

TInternal
deep reach bore gages allow the difficult measuring of pitch
diameter deep inside a small diameter product. For measuring
larger deep diameters, contact point extension rods can be attached.
The DB series of gages are our internal deep reach bore gages.
One set of contact points and one set of extension rods are
included. DB-1800 (18" 457,2мм), DB-2400 (24" 609,6мм).

According
to API, power tight is when “a threaded connection has been
fully made up by mechanical means using power tongs or a screw-on
machine”. The Power Tight Make-up Gage, PT-4000, adjusts to
determine the proper make-up location of API couplings. The
PT-4000 measure both coupling length and the make up length.

This
ensures that the pin and the coupling have made up at the proper
distance, or rather that the pin has gone deep enough into the
coupling.

StandoffStandoff

According
to ASME B 1.7-2006, standoff is the axial distance between specified
reference points on external and internal taper threaded members
or gages when assembled with a specified torque or under specified
conditions.

More
simply though, API defines standoff as the distance between
faces of one gage to another or when mated, the distance between
the gage face and the product reference plane.

For
API products, standoff is a required inspection.

However,
a particular inspection method is not defined. For the best
results with rotary shouldered connections, Gagemaker recommends
using one of our standoff gages from the ST-7000 Series.

For
standoff inspection on rotary shouldered connections, the ST-7001
is for pins and the ST-7002 is for boxes. The ST-7001 measures
variation in ring and plug gage standoff on rotary shouldered
connections.

The
ST-7001 is set with the supplied setting standard.The
ST-7002 is set on any qualified surface.

Wall
Thickness GagesWall Thickness Gages

The WT-9000 series of gages measures wall thickness at specific
distances from the end of the pipe. Specify the distance from
the end of the pipe to the measuring plane when ordering.